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An integrated planar optical device based on digital planar holography

A technology of optical devices and optical components, used in optical components, optics, instruments, etc.

Inactive Publication Date: 2015-01-14
NANO OPTIC DEVICES
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Therefore, the positions and optical parameters of the input and output beams are strictly dependent on the geometry of the grating, which severely limits the design of the optical structure
Another disadvantage of the known planar holographic devices described above is that the number of optical transmission channels is limited since each holographic pattern element is used for only one or two channels

Method used

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  • An integrated planar optical device based on digital planar holography
  • An integrated planar optical device based on digital planar holography
  • An integrated planar optical device based on digital planar holography

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Embodiment Construction

[0022] The idea of ​​this new planar geometry is to enable light to propagate within the hologram at thousands of wavelengths, greatly increasing the possibilities for manipulating light.

[0023] Digital planar holography advantageously combines the possibility to write arbitrary holograms with long optical paths within the hologram. The final technical hurdle is a good quality blank planar waveguide. The waveguide must be about 1 micron thick, transparent, and very uniform in order to transmit light without distortion. This final condition is the biggest limitation, but it is mainly solved by the optics industry making arrayed waveguide gratings for use as fiber optic communication devices. After the problems associated with the creation of sub-wavelength patterns have been resolved due to the development of modern microlithography methods, the successful implementation of digital planar holography is only left with the problem of determining the pattern to be written in or...

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Abstract

An integrated planar optical device having a holographic pattern based on digital planar holography The device consists of a semiconductor substrate that supports a plurality of planar optical elements and a lower cladding layer. The lower cladding layer supports a light-propagating and distributing layer, embedded into which is a plurality of interconnecting pattern elements of a holographic pattern intended for controlling properties and directions of light beams propagating to and from the aforementioned planar optical elements in accordance with the holographic pattern This is achieved by providing specific positions, shapes, and a refractive index of pattern elements that are different from the refractive index of the material of the layer that contains these elements The method of designing and manufacturing the aforementioned pattern is described.

Description

technical field [0001] The present invention relates to the processing of light or other waves in a planar integrated circuit consisting of multiple repeating standard elements such as lasers, amplifiers, detectors and fast saturable absorbers interconnected by digital planar holograms. More specifically, the invention relates to methods for digitally processing light waves and integrated planar optics operating on the principle of digital planar holography. Background technique [0002] Using light to process and transmit information requires the fabrication of integrated optical circuits. It is well known that integrated circuits using light have not replicated the success of electronic integrated circuits, but most important active nonlinear optical elements like lasers, amplifiers, detectors, and fast saturable absorbers are usually fabricated by microlithography on planar waveguides. , and then scribed (diced) and connected to the optical fiber. This is very similar ...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G02B5/32
CPCG02B5/32G03H1/0808G02B2006/1215G02B6/124G02B6/12004G02B6/2808G03H1/0891G02B6/43G06E3/005
Inventor V·扬科夫
Owner NANO OPTIC DEVICES